WO2006058838A1 - Procede et appareil de codage et decodage de signaux video principaux et d'un ou de plusieurs signaux video auxiliaires - Google Patents

Procede et appareil de codage et decodage de signaux video principaux et d'un ou de plusieurs signaux video auxiliaires Download PDF

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Publication number
WO2006058838A1
WO2006058838A1 PCT/EP2005/055937 EP2005055937W WO2006058838A1 WO 2006058838 A1 WO2006058838 A1 WO 2006058838A1 EP 2005055937 W EP2005055937 W EP 2005055937W WO 2006058838 A1 WO2006058838 A1 WO 2006058838A1
Authority
WO
WIPO (PCT)
Prior art keywords
video signals
main
video signal
auxiliary
video
Prior art date
Application number
PCT/EP2005/055937
Other languages
English (en)
Inventor
Carsten Herpel
Dirk Gandolph
Jobst Hörentrup
Ralf Ostermann
Uwe Janssen
Hartmut Peters
Andrej Schewzow
Marco Winter
Original Assignee
Thomson Licensing
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson Licensing filed Critical Thomson Licensing
Priority to JP2007543824A priority Critical patent/JP2008522519A/ja
Priority to EP05808161A priority patent/EP1817906A1/fr
Priority to US11/791,185 priority patent/US20080043140A1/en
Publication of WO2006058838A1 publication Critical patent/WO2006058838A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42646—Internal components of the client ; Characteristics thereof for reading from or writing on a non-volatile solid state storage medium, e.g. DVD, CD-ROM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4438—Window management, e.g. event handling following interaction with the user interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42661—Internal components of the client ; Characteristics thereof for reading from or writing on a magnetic storage medium, e.g. hard disk drive

Definitions

  • the invention relates to a method and to an apparatus for encoding and for decoding and presenting a main video signal and one or more auxiliary video signals.
  • auxiliary- video signals into the primary video and then encode them jointly into a single coded video stream.
  • the auxiliary- video signals that are presented in predefined locations on the screen may then be used as 'video menu buttons' in order to switch the current main video to one of the other video
  • Main disadvantage of that solution is that any combination of a main video signal and a set of one or more auxiliary PIP-type video signals needs to be pre-authored. It is not possible to switch off the PIP-like video signals unless an additional version of the main video, not including the PIP video signals, is additionally put on disc, effectively doubling the storage capacity required for that main video.
  • the video plane having e.g. 1920* 1080 pixels is logically split into a main video window
  • the user Due to the fact that the PIP-like video signals are no longer 'hard coded' into the main video window, the user has control over showing or hiding each one of these additional video signals. Additionally, the user may be enabled to control the positioning or scaling of the PIP windows at any location of the display as shown for example in Fig. 3. None of these operations requires a separate video stream to be decoded and presented, as is the case in the prior art. Hence, a show, a hide, a scaling or a re-positioning operation neither incurs a time delay, i.e. a pausing of the video playback, nor does it require additional storage space.
  • the inventive method is suited for encoding a main video signal and one or more auxiliary video signals, including the steps :
  • - means being adapted for generating position and scale information about said one or more auxiliary video signals; - means being adapted for combining the data for said single encoded video signal with the data for said encoded position and scale information for providing a combined data stream that can be mastered for a storage medium.
  • the inventive apparatus is suited for decoding a main video signal and one or more auxiliary video signals and for presenting said main video signal and none or more of said auxiliary video signals, wherein said main video signal was originally arranged such that it was related to a main part only of a predetermined image area and said one or more auxiliary video signals were arranged such that they were related to the remaining part of said predetermined im- age area, said apparatus including:
  • Fig. 2 first example for presenting the PIP pictures as re- played
  • FIG. 5 decoding, compositing and displaying a main image together with PIP pictures
  • FIG. 4 e.g. three video image or video image sequence source stages VIDl, VID2 and VID3 generate three different source main video pictures .
  • Each one of these stages feeds its output signal to a corresponding combiner CMBl, CMB2, CMB3, respectively, and to a corresponding down converter DWNCl, DWNC2, DWNC3, respectively, that forms a corresponding PIP picture thereof.
  • the combiners can combine a main video picture with one or more of the PIP pictures stemming from the other video image or video image sequence source, such that the PIP data are arranged adjacent to the corresponding main image data, e.g. in a way like is depicted at the top and at the bottom of this figure.
  • the output signals of combiners CMBl, CMB2 and CMB3 pass through respective video encoders ENCl, ENC2 and ENC3 and are thereafter used in a disc mastering stage DMST for combining these encoded video data with related PIP position and scale information data items and eventually with button command data, for mastering a storage medium STM.
  • the video encoders use e.g. MPEG- 1, MPEG-2, MPEG-4, MPEG-4/AVC or VC-I encoding.
  • Fig. 6 a block diagram is shown for decoding, compositing and displaying a main image together or not with PIP pic- tures, i.e. the PIP pictures can be hidden when displaying the main image.
  • a pick-up and a channel decoder (not depicted)
  • data including the encoded main picture data and the PIP picture data are read from a storage medium STM.
  • a single video decoder DEC decodes the encoded picture data including the main picture data and the PIP picture data, arranged as depicted at the top of Fig. 6.
  • Video decoder DEC uses the corresponding type of decoding, i.e. MPEG-I, MPEG- 2, MPEG-4, MPEG-4/AVC or VC-I decoding.
  • the related PIP position and scale information data items are decoded in a po- sition and scale decoder DECPSC. That decoder, and eventually a button command data decoder (not depicted) , provide a compositor CPSTR with corresponding information items.
  • the compositor CPSTR includes a buffer storing the decoded frame, applies these information items to the decoded video data and outputs the main picture and PIP picture data
  • the process- ing for overlaying the PIP-like video signals can be carried out either by fast block move operations within the frame buffer or, in case of a display process with multiple video layers available, by moving the PIP video data to another layer for display.
  • the compositor receives and evaluates an additional show PIP input signal, which relates to the display status of one or more PIP pictures.
  • the 'true' status SPIPTR of that signal causes display of one or more PIP pictures in the upper half of Fig. 6.
  • auxiliary video signals For each one of the auxiliary video signals it is controlled using the SPIPTR and SPIPF data whether or not it is presented together with the main video signal.
  • the coded pixel aspect ratio of the PIP video signals depends on the location of the video sealer, if any, in the display process. If the PIP video signals are overlaid before the display buffer is scaled, then both main video and PIP video need to have appropriate non-square pixels. If PIP video is presented in a separate video layer that does not undergo scaling or if the main display buffer is not scaled, then the PIP video must have a square pixel aspect ratio. This assumes that the display device has square pixels, as is the case in the forthcoming display standard with 1920*1080 pixels.
  • the decoded video output signal from DEC in fig- ures 5 and 6 is stored into a frame buffer FRBUF.
  • the frame buffer output consisting of the main video signal only passes through a first sealer SCLRl in which the picture is horizontally and/or vertically extended such that it occupies the full display format, e.g. a 16:9 or a 4:3 format.
  • the invention advantageously facilitates display of optional picture-in-picture video without need for a second video decoder or a duplication of storage space. There is merely a small reduction in horizontal resolution of the main video.
  • the invention can be used in optical recording or a harddisc systems (e.g. DVD, HD-DVD, BD) and requires in a player or receiver only some additional video data transfers prior to display in addition to the simple decoding and display of a single video stream.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Software Systems (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

Normalement, des signaux vidéo numériques PIP sont directement édités dans un signal vidéo principal, puis codés conjointement dans un flux vidéo codé unique. Toutefois, afin de donner à un utilisateur le contrôle total de la présentation PIP des signaux vidéo codés, chaque signal PIP requiert un codage séparé, et un décodeur vidéo est requis dans un récepteur pour chaque flux vidéo affiché. Selon l'invention, on active une présentation du type PIP de signaux vidéo auxiliaires associés à une ligne temporelle à l'aide d'un flux vidéo codé unique et donc d'un décodeur vidéo unique. Lorsqu'on le code, le plan vidéo est logiquement séparé en zone vidéo principale et en zone de panneau latéral supportant une ou plusieurs fenêtre(s) PIP. Après le décodage, la zone vidéo principale est affichée centrée ou étirée à la dimension de la totalité de l'affichage. Le contenu du panneau latéral n'est pas affiché directement mais, en fonction d'informations latérales, certaines parties de ce panneau recouvrent la fenêtre vidéo principale. Du fait que les signaux vidéo PIP ne sont plus incorporés dans la fenêtre vidéo principale, l'utilisateur peut commander l'affichage ou le masquage de chacun des signaux vidéo PIP.
PCT/EP2005/055937 2004-12-02 2005-11-14 Procede et appareil de codage et decodage de signaux video principaux et d'un ou de plusieurs signaux video auxiliaires WO2006058838A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2007543824A JP2008522519A (ja) 2004-12-02 2005-11-14 主ビデオ信号と１つ又は複数の補助ビデオ信号を符号化及び復号するための方法及び装置
EP05808161A EP1817906A1 (fr) 2004-12-02 2005-11-14 Procede et appareil de codage et decodage de signaux video principaux et d'un ou de plusieurs signaux video auxiliaires
US11/791,185 US20080043140A1 (en) 2004-12-02 2005-11-14 Method And Apparatus For Encoding And For Decoding A Main Video Signal And One Or More Auxilliary Video Signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04090477A EP1667448A1 (fr) 2004-12-02 2004-12-02 Procédé et appareil pour le codage et le décodage d'un signal vidéo primaire et un ou plusieurs signaux vidéo auxiliaires
EP04090477.3 2004-12-02

Publications (1)

Publication Number Publication Date
WO2006058838A1 true WO2006058838A1 (fr) 2006-06-08

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PCT/EP2005/055937 WO2006058838A1 (fr) 2004-12-02 2005-11-14 Procede et appareil de codage et decodage de signaux video principaux et d'un ou de plusieurs signaux video auxiliaires

Country Status (6)

Country Link
US (1) US20080043140A1 (fr)
EP (2) EP1667448A1 (fr)
JP (1) JP2008522519A (fr)
KR (1) KR20070089146A (fr)
CN (1) CN100542247C (fr)
WO (1) WO2006058838A1 (fr)

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KR101828096B1 (ko) 2010-01-29 2018-02-09 톰슨 라이센싱 블록 기반 인터리빙
CN101860711B (zh) * 2010-06-13 2012-01-11 深圳市茁壮网络股份有限公司 一种数字电视上显示小视频的方法及装置
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CN104765696A (zh) * 2015-04-07 2015-07-08 天脉聚源（北京）教育科技有限公司 一种数据处理方法及装置
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Also Published As

Publication number Publication date
KR20070089146A (ko) 2007-08-30
CN100542247C (zh) 2009-09-16
EP1817906A1 (fr) 2007-08-15
US20080043140A1 (en) 2008-02-21
EP1667448A1 (fr) 2006-06-07
CN101065962A (zh) 2007-10-31
JP2008522519A (ja) 2008-06-26

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